SU859458A1 - Shaking chute for casting blast furnace smelting products - Google Patents

Description

(54) SHAKING GUTTERS FOR FILLING DOMAIN FURNACE DUCT PUDS

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The invention relates to ferrous metallurgy, namely, devices for pouring melting products from a blast furnace.

A chute, known for pumping smelting products from a blast furnace, is known, including a trough-shaped tank installed with the possibility of a swing and equipped with two mutually perpendicular drain socks located at different levels 11).

A disadvantage of the known device is that the need to cast two balls, located on different railway tracks, leads to an increase in the overall dimensions of the trough-shaped container and, consequently, increases the complexity of the work on its lining and operation.

Closest to the proposed one, the chute is swaying for pouring melting products from a blast furnace, containing a trough-shaped tank mounted on a welded frame, the horizontal pins of which are mounted on bearing supports. Thanks to this, the frame along with the chute can

swing in vertical IUIOCKOCTH. The swing is carried out by an electromechanical drive connected to a frame of a curvature-stroke-drag gear. For turning the gutter in emergency situations, the device is equipped with a manual drive 2.

A disadvantage of the known device is the presence of a manual drive turning the chute in emergency situations, which cannot provide a quick turn due to large

10 mass of the gutter. The insufficiently fast turning of the gutter leads to the loss of iron and the gulf of railway tracks due to the splashing of melting products, and their cleaning is very laborious.

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The purpose of the invention is to reduce the loss of iron by eliminating their splash when tilting.

Claims (2)

This circuit is achieved by performing a drive in the form of a three-pointer hydraulic cylinder, the pump assembly of which is duplicated with a hydraulic accumulator. The intermediate positions of the hydrocylidian rod are fixed with a vanishing stop. FIG. I shows the proposed device, a general view; in fig. 2 - view of the device in 11 Lan. The device contains chute 1 with drain socks 2 and 3. Chute 1 is equipped with izppfy 4 and 5, mounted on bearing supports 6 and 7, and connected with the crankshaft-shaft) 8 transmission gear with three-position hydraulic cylinder 9 mounted on the frame 10. Hydraulic cylinder 9 connected to a pump station 11 duplicated with a hydraulic battery 12. A vanishing stop 13 is mounted in frame 10. In addition, the device contains a stationary chute 14 of a blast furnace. The device works as follows. From the stationary trough 14, the smelting products arrive at the horizontal position of the trough 1, while the rod of the hydraulic cylinder 9 is extended to the middle position. After filling the bath of chute 1, it is necessary to drain the melting products, for example, through the toe 2. To do this, the rod of the hydraulic cylinder 9 is transferred to the extreme left position by supplying fluid from the pump station 11 and using the crank-rod drive 8, the chute 1 is rotated on the trunks 4 and 5 mounted in the sub-supports 6 and 7 towards the toe 2. To drain the melting products through the toe 3, the cylinders of the hydraulic cylinder 9 extend to the stop 13 mounted in the frame 10, while this chute 1 turns towards the toe 3. At the end of the signal casting with bullets laziness and councils (not shown) abutment 13 is retracted, schtok cylinder 9 is transferred into an extreme position and praoe pooled balances of melt baths chute 1 into the ladle (not shown). In case of an emergency in the event of a power outage, the fluid is supplied to the hydraulic cylinder 9 from the hydraulic accumulator 12. The advantage of the proposed device is that it eliminates the manual drive of the chute in emergency situations, which eliminates iron loss and eliminates the possibility of filling the rail paths products melting. Claim chute for casting smelting products and a blast furnace, containing a trough-shaped tank with a rotational drive perpendicular to the longitudinal axis, characterized in that, in order to reduce iron losses by eliminating their splash when the chute is tilted, the chute drive is designed as a three-position hydraulic cylinder with a rod connected by a pipeline with a pump and hydraulic accumulator, and a movable stem stem is fixed on the frame of the hydraulic cylinder. Sources of information taken into account during the examination 1. USSR author's certificate No. 271537, cl. C.2.1 B 7/14, 1% 7. 2. Catalog NIIinformt Zhmash 18-2, sheet 48, 1975.